error of inline function

In this

Sa=[1 2];
Si =[2 3;45;6 7;8 9;15;5 7];
function='exp(-Theta.*(Si(i,:)-Sa));

I want to find the double integration of this function. IN this I_whole is one arrray of NX2 array.

MY code is :

Theta=[18 3.5];    
   [x,y]=size(I_whole);
   for i=1:1:x
       for j=1:1:y
           Si(i,j)=I_whole(i,j);
           temp=inline('exp(-Theta.*(Si(i,:)-Sa))');
           f(i,:)=temp;
        end
   end
Energy=dblquad(f,1,x,1,y);

 But I am getting below error:

??? Error using ==> inline.subsref at 14
Not enough inputs to inline function.

Error in ==> dblquad>innerintegral at 73
fcl = intfcn(xmin, y(1), varargin{:}); %evaluate
only to get the class below

Error in ==> quad at 76
y = f(x, varargin{:});

Error in ==> dblquad at 53
Q = quadf(@innerintegral, ymin, ymax, tol, trace,
intfcn, ...

Answer 1

[Walter Roberson]

Do not use inline for that.

I would suggest using anonymous functions, but since all of your expression components have defined values, you have no variable to integrate with respect to. Are you sure you want quadrature integration (which requires a function to integrate) and not the two-dimensional equivalent of trapz() ?

[Mona]

Thank u so much... Act i am new in Matlab can u suggest me what should I change in above code???

[Mona]

And I want quadrature integration (which requires a function to integrate).

[Walter Roberson]

If you want quadrature integration, you need a function with a free variable to integrate over -- the variable of integration. What is the variable of integration in your expression

exp(-Theta.*(Si(i,:)-Sa))

You have defined specific values for Theta, Si, and Sa, and you are in a "for" loop that defines "i".